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Segments and Major Customers (Details 2) - Customer Concentration Risk - Sales, net
3 Months Ended
Mar. 31, 2019
Mar. 31, 2018
Customer A    
Concentration Risk [Line Items]    
Revenue from major customer as a percentage of total revenue   34.00%
Customer B    
Concentration Risk [Line Items]    
Revenue from major customer as a percentage of total revenue   11.00%
Customer C    
Concentration Risk [Line Items]    
Revenue from major customer as a percentage of total revenue 19.00%  
Customer D    
Concentration Risk [Line Items]    
Revenue from major customer as a percentage of total revenue 16.00%